scsi: ufs: Fix illegal offset in UPIU event trace

Fix incorrect index for UTMRD reference in ufshcd_add_tm_upiu_trace().

Link: https://lore.kernel.org/r/[e-mail]
Fixes: 4b42d557a8ad ("scsi: ufs: core: Fix wrong Task Tag used in task management request UPIUs")
Cc: [e-mail]
Reviewed-by: Stanley Chu <[e-mail]>
Reviewed-by: Bart Van Assche <[e-mail]>
Signed-off-by: Jonathan Hsu <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/ufs/ufshcd.c

···
 static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 				     enum ufs_trace_str_t str_t)
 {
-	int off = (int)tag - hba->nutrs;
-	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[off];
+	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag];
 
 	if (!trace_ufshcd_upiu_enabled())
 		return;